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Finding the Fourth Proportional to 614,005.74, 921,107.16 and 259,072.02

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Solution

The fourth proportional to 614,005.74, 921,107.16 and 259,072.02 is: 388,649.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,005.74 : 921,107.16 = 259,072.02 : x
  2. Step 2: Convert to fraction form
    614,005.74/921,107.16 = 259,072.02/x
  3. Step 3: Cross multiply
    614,005.74x = 921,107.16 × 259,072.02
  4. Step 4: Simplify right side
    614,005.74x = 238,633,092,577.66
  5. Step 5: Solve for x
    x = 238,633,092,577.66/614,005.74
  6. Step 6: Final answer
    x = 388,649.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.